Showerhead



FIG. 1 is a perspective view of a showerhead showing my new design;

FIG. 2 is a rear view thereof;

FIG. 3 is a first side view thereof;

FIG. 4 is a second view thereof;

FIG. 5 is a top plan view thereof;

FIG. 6 is a bottom view thereof; and,

FIG. 7 is a front view thereof.

The broken line showing in FIGS. 1-7 is included for the purpose ofillustrating and forms no part of the claimed design.

The ornamental design for a showerhead, as shown and described.